Refactored the following aspects to be a rule applied by one aspect EnforceInstanceLevelRulesAspectAttribute:

- FailNotCalledBaseEstablishContextAspectAttribute
- FailPrivateFieldCalledInNestedClassAspectAttribute
- FailTestFixtureWithoutTestAspectAttribute
- ProhibitGetOnNotInitializedPropertyAspectAttribute
- ProhibitSetOnInitializedPropertyAspectAttribute